So, as part of my local IT support business I have to handle people’s computers and connect them (laptops) to my router wirelessly. Whilst working on a specific system I want that system to remember my router’s password but, once I have done with it and sent the machine back to its owner, I no longer want it to do so. All my machines are password protected and, normally, such machines won’t have access to any of my shares as I copy data over on USB.

My questions then are, what danger does a potentially connected computer represent to my network? Is it enough to simply click on the relevant link and select “Disconnect”?